Julius schulke



(No Model.)

5 .J. S GHULKE. REGENBRATIVE HYDROGARBON LAMP.

No. 550,110. Patented Nov. 19, 1895.

WAMWs/QA Q/YMh AN DREW EGRAHAM. FNOTO'UTHQWASHINGI'DNDYC.

UNITED STATES v PAT NT OFFICE.

JULIUS SCHITLKE, OF BERLIN, GERMANY.

REG EN ERATIVE HYDRQCARBON-LAM P.

SPECIFICATION forming part of Letters Iatent No. 550,110, dated November 19, 1895. Applicatiml filed February 9, 1895. Serial No. 537,793. (No model.)

To all whom it mag concern.-

Be it known that I, JTlLIUS SOHI'JLKE, engineer, a subject of the Emperor of Germany, and a resident of 94 Leipzigerstrasse, in the city of Berlin, in the Empire of Germany, have invented new and useful Improvements in Regenerative Hydrocarbon-Lamps, of which the following is an exact, full, and clear specification.

This invention relates to an improved device for feeding the petroleum consumed by regen erative hydrocarbon-lamps, such device consisting of an elastic or flexible tube fixed at one end to the petroleum-receptacle,the other free end being provided with an overflowchamber which may be so raised and lowered, along with the flexible tube, that the flow of petroleum may be increased, decreased, or cut ofi altogether by correspondingly changing the position of said chamber. The arrangement of the latter is such that the petroleum fed through said flexible tube cannot pass out of such chamber into the gasifying retort until the chamber is quite full. During this self-filling, flames fed by spirit heat the lamp, so as to effect the gasifying'of the petroleum. The required quantity of spirit, therefore, may be put into the spiritreceptacle and the petroleum caused to flow into the overflow-chamber simultaneously. The petroleum, however, does not pass to the gasifying retort until said flames are extinguished.

, I will now describe my invention withreference' to the accompanying drawings, in which- Figure 1 is a regenerative hydrocarbonlamp, partly in section and provided with the improved petroleum-feeding device. Fig. 2 shows, on larger scale, a vertical section of a modified construction of the overflow-chamber. Fig. 3 is a section on line 1 1 of Fig. 2, and Fig. 4 shows, on larger scale, a modified filtering arrangement.

The petroleum is put into two reservoirs or receptacles A A, connected to each other and mounted on preferably annular chambers 71, the petroleum in same being maintained at a constant level by a valve 1%, arranged in the usual manner. A casing n is connected to the chamber n, a flexible or elastic tube a being fixed to the former and winding spirally several times around the chimney 00, which is preferably provided with a jacket y, serving as a guide for the tube a. The casing n is preferably provided with a filter, the one shown in Fig. 1 consisting of an open tube 19, having perforated plate I), and of packing b i. e., wadding, cotton, wool, or other fibrous material suitable for forming the filter. The open tube: 1) allows the air to escape from the tube a and the parts connected therewith. The free end of said tube a is fitted into socket cof chamber 0, which latter is preferably closed. The quantity of oil passing through the tube a into chamber 0 may be regulated by a screw (1. A'second tube 6, fitted into the chamber 0 and provided at its upper end with a slit or recess 6, enters the somewhat larger cylindrical extension 6 of the chamber and passes through the socket e -in the bottom of chamber a. The lower end of tube e,thr0ugh which the petroleum from the overflow-chamber c drips, is preferably pointed or cut away. A tube f, secured to the bottom of the chamber c, surrounds the tube e and receives the tube g, leading to the gasifying-retort. This tube f is provided with a handle f for raising or lowering the chamber 0. Itwill be evident that these movements' may also be effected by means of the customary chains, rack, and pinion, or in any other suitable manner. A ring 11 is preferably provided on the tube g, such ring serving as a stop for the tube and so as to limit the downward movement of the chamber.

Aspirit-receptacle k, supplying spirit to the wicks Z, is connected to the tube g by a branch pipe is, which latter may be provided with a cook or valve. The flame produced by wicks lheats the lamp in such manner that the petroleum in the tube g or the retort g in communication with the burnertubes m is gasified.

When it is desired to light the lamp, the quantity of spirit necessary for sufficiently heating the lamp is put into the receptacle lo, and after igniting the wicksl the chamber 0 of tube a is lowered'until same is below the level of the petroleum in the chamber n. The petroleum, after passing through the filtering material in the casing n, passes through the tube a and thus finds access to the chamber 0. Immediately the chamber 0 is full-i. 6., when the petroleum has reached the level of the slot c in the tube e-such petroleum passes down the latter and drips from its lower end into the tube g, leading to,

the retort.

The outlet of the petroleum may be more or less increased or decreased by correspondingly raising or lowering the chamber 0.

Then it is desired to extinguish the lamp, it'

is only necessary to raise the chamber 0 above the level of the petroleum in the chamber or. The petroleum then ceases to flow through the tube c, and the remaining petroleum in chamber 0 returns through tube a to the chamber n.

Fig. 2 showsa modification of the overflowchamber 0, the outlet-tube e in this case protruding through the extension 6 and being provided with a sleeve or ring 6 inserted in the upper end of the tube e. The latter has a lateral opening c so that when the chamher 0 is full the petroleum passes through said opening a into the canal c (the latter being formed by pressing inward part of the sleeve e) and finally falls over the upper edge of such sleeve c thus finding access into the tube 6 and fromthence to the gasifying-retort.

Instead of regulating the feed of petroleum by the screw (1, which more or less closes the outlet of tube a, the filter may be constructed, for instance, as shown in Fig. 4. In that case the filtering material b in the casing n is placed between the fixed perforated disk D of tube 1) and a movable perforated disk b The latter disk 11 may be moved by means of the screwed collar 1), it being thus possible to compress the filtering material more or less, and therefore to regulate the permeability of same, according to the quantity of petroleum passing or required to be passed into consumption. By means of this resisting medium-i. c. by restricting the outflow of the petroleum into the tube aowing to the compressed filtering material, it is thus rendered possible to raise and lower the chamber 0 to a greater extent for regulating the feeding of petroleum.

It will be seen from the foregoing that the supply of petroleum to the lamp may be exactly regulated without any cocks or valves being necessary, and that when the lamp is extinguished the chamber 0 empties itself.

Ilaving particularly described and ascertained the nature of this invention and in what manner the same is to be performed, I declare that what I claim, and wish to secure by Letters Patent, is

1. A feeding device for lamps consisting of an oil receptacle, and a flexible tube connected thereto, combined with an overflow chamber also connected to the tube and adapted to be raised and lowered, and a tube leading to the burner, substantially as shown.

2. In a feeding device for lamps, an oil receptacle, and a flexible tube leading therefrom, combined with an overflow chamber, to which the tube is also connected, a plug or valve for controlling the flow of oil to the chamber, a pipe extending from near the top of the chamber, and a pipe leading to the burner; the chamber being adapted to be raised and lowered, substantially as described.

In a feeding device for lamps, an oil. receptacle, a valve for controlling the flow of oil therefrom, the chambers n n, the pipe I) placed therein, and a suitable filtering material placed in the lowerportion of the chamber combined with a flexible tube through which the oil flows from the chamber, an overflow Gl1tD1b61',t1O connected to the tube, and a pipe or pipes for conveying the oil to the burner; the overflow chamberbeing adapted to be raised and lowered, substantially as set forth.

In witness whereof I have hereunto signed my name in the presence of two subscribing witnesses.

JULIUS seniirnn.

\Vitnesses:

J. KoLLM, CHAS. KRIEGER. 

